Strainer for pipe lines



Jan. 8, 1935.

F. L. CLEMENTS. JR

STRAINER FOR PIPE LINES Filed Jan. 23, 1934 INVENTOR FL. Clements, c751,

' ATTORN t EYS v Patented Jan. 8, 1935 .i TE TA ES PATE T i OFFICE}STRAINE FOR PIPE LINES f Frank- L Clements, Jr., Luling,' Tex.

Application January 23, 1934;"Serial' No. 707,967 z ciaiih b cram-167) sThis invention relates to a' 'strainer for pipe lines. Y 4

An object of the invention is the'provision of a strainer for pipe linesin which'a perforated 5 plate or partition divides a tubular member into'an' inlet chamber and an outlet chamber with -me'ans movableover-theper-forated plate for removingsolid particles orffor'eign matterwhich have been' strained outofthe liquid by the perforated'plate. I

Anotherobject'of the inventionis the provipipe lines in "which the' sion'of a strainer for foreign matter collected on-"a screen may be removedwithout cuttingfofi the flow of liquid throughthe pipeline; Y w I Afurther object of the-invention is the provision of a strainer for pipelines'in which a hollow body member-is incorporated -in 'theline andlocated at right angles to the flow of liquid through the" lines, I aperforated plate "forming a screen being removably mountedlongitudinally of the'body; thereby providing an inlet chamber and anoutlet chamber, a plunger having af'springpressed" blade being movableover the perforated plate foriremovingforeign matter or solid particlescollected on the perforated-plate,Lmeans being-employed for withdrawingthe foreign mate ter removed by theplungerfrom the hollow body.

This invention will be best. understood from a consideration of the.following: detailed description, in view'of the accompanyingdrawing'formingiapart of the'specification;nevertheless, it isto beunderstood that'theinvention is not confined to theidisclosure,'beingsusceptible of such changes and modifications as: define nomaterial departure from the'salient -features:of. the in'vene tionasexpressedlin the appended claims.

In the drawing: I

Figure 1 is a view in elevation of a strainer constructed in accordancewith the principles of my invention, I

Figure 2 is a vertical section of the strainer, and

Figure 3 is a horizontal section taken along the line 3-3 of Figure 2.

Referring more particularly to the drawing, 10 designates a tubular orhollow body member which has diametrically disposed openings 11 and 12located intermediate the ends of the hollow body. A flanged inlet pipe13 is connected with the hollow body and is in communication with theport 11. A flanged pipe 14 is connected to the hollow body at adiametrically opposite point from the port 11 and is in communicationwith the port 12. The pipe 13 provides an inlet conduit while thepipe 14forms a discharge conduit for the interior 'of the body member 10. V

One end of the body is proyided with aflange 'l 5fto'which is connectedby means of bolts 16 a 'cover'plate -17f or closing one end of the'bo'dymember; r 3 A hollowiboss 18 is formed integrally with-"the cover 17 andis proVidedwith athreaded end 19 upon which a cap 20 is screwed. ITheboss is pro- *vided withapacking 21*. i w

Theopposite end of the bodymember is like wise provided with a coverplate 22 whichis' s' -j cured to a flange 24 formed integrally with thebodyniember. I v o The cover plate 22 is provided with an opening -25which isina line with the passage 26 anda pipe 27, the pipe being formedintegrally with the cover plate 22. The outer end'of: the pipe '27 I hasa flange28 and a flange 29 is connected-by means of bolts 30 withtheflange 28-zofithe 11 27, o pipe" 31 formed. integrally with theflange -29,-.together with the pipe 27, forms a discharge means forforeign matter from the-interior of the body member 10 as will bepresently explained. The pipe 3 1 extends to a sump adjacentth e. illine; represented by the pipes 13 and 14. A perforated plate 35 islocated longitudina of the hollow body ember 10 and disposed"; orig thediameter ,of said body'membe'r. "Pair "of guides 36 are secured tothe'inner owall of thle body member 'upon opposite sides of theflperf'forated plate to provide means "for removably supporting the perforatedplate or partition '35 within the body member.- When the cover plate 17is'removed theperforated plate maybe withdrawn from the body member. 1fdesired,- how ever, the perforated plate may be cast integrally with thebody member 10.

The perforated plate forms a strainer for fluid flowing from the pipe 13and is adapted to remove solid particles or foreign matter from theliquid passing through the body member 10. The perforated plate orpartition 35 divides the body member into an inlet chamber 37 and anoutlet chamber 38. i

A plunger 40 is located in the inlet chamber 37 and is shaped to conformto a cross sectional area of the inlet chamber 3'7. An edge of theplunger which is located adjacent one face of the perforated plate 35 isprovided with aslot m ow with the magnum :pipe- -14.mllyaiocatedrin'theqaositionshown ;2

edgeof the plate in flat contact with one face of I the perforated plate35.

The plunger 40 is operated by a rod which 5 extends through a packing 46in the outer end of the boss 18. This rod also extends through a passage4'7 in the cap 20. The outer end of the rod is provided with a handle 48whereby the rod and likewise the plunger may be recipro- Thebody member10 adjacent thev inlet chamber 37f-is. provided with an internallythreaded hollow' boss 50 which is plug 51 when a pipe 52 is not used asshown :in Figs. 2 and 1, respectively,

The pipe 52 is placed in communicationwith thechamber 37 after the plugv.51-.has.;been re- "in member, a r-ngitudinally of thetiibularmember'and dividing the tubular member into moved. The outer end of saidpipe connected the pipe 31 above the sump" 53 and hetwen the gate valves54 and 55. r i.

a check valve 56'near its The pipe 52 has chamberB'land a. gate valve5'1 near the connection of the pipe' withgthe i p l- A i- :X operationof my device is as ioliowsgm'lhe hollow oody member 10 is :incl-udedin;tie -pipelineand located transversely of the flowl ofthe liquid so thatthe liquid from the pipe line' lB 'thevoutlet chamber 38 freepf;ioreignnmtter. m .-stra.med i-liquid -wi1l then be discharged The plunem ne is periodically reciprocated in the inletychamber iBiz-Ionrcrnov-ing the ioreigmmatter collected upon maniacs attthe inletside o t-the 'bOdYrYIHHBZlbGI and this-foreign imatter forced downwardlythrough themort 25 land into the pipe .27. A The e, through; thespring-pressed blade 42,

.1 mill remDveaaH/sblid particles collected, upon ,the

strainer 35 and also will remove waxy material me has been tree-dimm'ioil'when tberglevice ll used-as a strainer ior io'ril lines. Thegate 'ivahre 55 normally closed during the -operatim of the plunger-andw'ilibe opened-only the I 'p'hin'ger' 43 1185 reached approximately-theopen-:-

7 the; :pipe 52 is employed t e flpipe 31' v is left run of fresh "oilbetween the two igate valves Stand 55. Before starting to movefthegplunger valves-Stand 57- are opened. "Thefplunger moveddownwardlyuntil, it reaches seat on the c over plate 22.. {Thenthe val vesb areclosedand valve 55- isope (l/after which .theqplunger 40 is 'moved awayfrom its seat on the coverzplatez'm sufiic-iently far andior.aisufclosed by a threaded.

willienter the-inlet chamber 37, then pass through penieratedj plate oripartition 35 and enter remains closed and cuts off communication be- Itween the pipe 31 and the sump 53.

The .pipe. 52 acts astalay-pass and. prevents the clean liquid from erltering.,the,-"airrnp. The flow of the liquid through the pipe 52 ispermitted where it is found impractical to allow clean fluid to pass tosaidsump.

"-lclaimz v .4. .A1 strainer -.-for pipe lines comprising a tubuinletand outletcham 'bers', an iiilet pipe communicating with theinietchambcr;aie s b -rcewc mmun cetinswith the outlet chamber, aplunger in the inlet her animovab v t-th p a rwtifio aor; removing-ioweignmatter collecting said perforated partition disposed lonmlatnsaid fi sta tially' l sinmt so e 2 between: o-theagpentonatedvpartition the; -;wa lls 5 of; the tubularv member-t dgactinggas1anpiston; as.

s mp; o le we onn c ine one fien -Qt: the c mb w th t ump. byepasstavmsone end communicating with the inletchamber and the :othenendcommunicatinggvith (the {91113- a check valve in the bY'D SKQdQQtEdHtDIWmt' liquid from homer-reread by :theggplungen'irrom thelinleti c m z to; the; byi-naasbutm m tudinally: into; .:anohamberz'rand an outlet p til-limiting:v an; imperiorate; plunger:mmmtedufor reciprocation I in;

a straight-wedge 1 resting on? the :said

plunger-substantially 1:10am; the between V the cperioratedt"psititionzz'andf thejwnllsi Oil the .izubrdar member and-acting asapistom the plungerrheing senn'eohcnl'trainrcroes sectinnmfirconiarmingrin :shapeatothe cross sectional area-er theiinletichamber, axfinshtank, apipe connecting one end vhf the. fljushMk, 1 a waive: on 5 :the :pipe; znormally closed but adapted tobeoopenednjusttbefore the i-plunger reaches the end to! .the inwardstroke thereof; '1 z 1 1: z .c-JERANKLL;"CEEMMS J ZE

